Sandhill Company uses a periodic inventory system and reports the following for the month of June. Calculate weighted-average unit cost (Round onswer to 3 decimal ploces, es. 5.125.) Weighted-average unit cost 5 eTextbook and Media Compute the cost of the ending inventory and the cost of goods sold under FIFO, LIFO, and average cost. (Found answers to 0 decimai ploces, es. 125.)